Linksys 1900ACS and Untangle adding a USB printer

I have the Linksys 1900 ACS router using the Untangle Firmware on it. I want to add a USB printer using the USB port on the back of the Linksys but not finding any documentation on this at all. We would like the printer to be available to everyone on the internal network through the router. It is currently shared from a desktop computer that has multiple users and that is proving to be problematic. I would prefer to set it up as a device on the Linksys and allow everyone to use it from there. Linksys has documentation on how to do this but that only applies if I was still running the Linksys Firmware.